Disclosed is a system for managing wireless transmitting devices in which a wireless transmission from a transmission device is detected within or about a set area and an allowability of the transmission device to continue transmitting is based on an identification information, of the device, a location of the device and a number being called by the device.
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16. A pseudo-tower system managing communications of wireless devices within an area controlled by said pseudo-tower, said pseudo-tower comprising:
at least one transmission facility configured to transmit a signal into said area;
at least one transmission detection facility configured to detect signal transmissions emanating from the area;
a processor configured to:
receive at least one signal associated with said signal transmission detected by the at least one transmission detection facility, wherein said received at least one signal being associated with a communicative action;
determine an identification of a wireless device associated with the received at least one signal based on information associated with the detected signal transmission;
determine an allowability of said wireless device based on an analysis of parameters associated with said wireless device, said analysis comprising evaluating current parameters associated with said identified wireless device in conjunction of parameters associated with prior parameters associated with said identified wireless device;
determine the communicative action being performed by the identified wireless device based on a content of the detected signal;
provide instruction to an action facility regarding the determined allowability of the identified wireless device and said type of communicative action; and
connect the identified wireless device to the action facility, wherein the action facility initiates at least one event related to the determined type of communicative action depending on the determined allowability.
1. A system for managing wireless transmitting devices, said system comprising:
at least one transceiving facility configured to:
provide signal detection coverage of an area;
detect transmission signals from one of the wireless transmitting devices;
transmit at least one signal into said area, wherein said at least one signal causing said one of the wireless transmitting devices to establish a communication channel with, and attach to, the system;
a processor in communication with said at least one transceiver facility and a memory, said memory including code, which when accessed by the processor causes the processor to:
receive, from at least one of said at least one transceiving facility, the detected transmission signal associated with the one of said wireless transmitting devices, wherein said received signal transmission being associated with a communicative action;
determine an identification of the one of said wireless transmitting devices from information associated with said detected transmission signal;
determine a type of said communicative action from information associated with said detected transmissions signal;
determine an allowability of said identified wireless transmitting device to operate within the area based on an analysis of parameters associated with said identified wireless transmitting device, said analysis comprising evaluating current parameters associated with said identified wireless transmitting device in conjunction of parameters associated with prior parameters associated with said identified wireless transmission device;
provide instruction to an action facility regarding the determined allowability of said identified wireless transmitting device and said type of communicative action; and
connect the one of said wireless transmitting devices to the action facility, wherein the action facility is configured to:
initiate at least one event depending on the determined allowability of said identified wireless transmitting device to operate in the area and the type of communicative action.
2. The system of
determine a location of said identified wireless transmitting device.
3. The system of
4. The system of
5. The system of
6. The system of
7. The system of
8. The system of
9. The system of
10. The system of
11. The system of
12. The system of
preventing said idenfired wireless transmitting device from performing one of: making a call, receiving a call, sending a text message, receiving a text message, receiving data, and sending data.
13. The system of
monitor continued transmission from said identified wireless transmitting device when said identified wireless transmitting device is determined to be within the area.
14. The system of
indicate said identified wireless transmitting device is allowed when said identified wireless transmitting device is determined to be located outside of said area.
15. The system of
disable all features of said identified wireless transmitting device except voice communication during contact with an emergency number, when said identified wireless transmitting device is indicated as unallowed.
17. The pseudo tower system of
18. The pseudo tower system of
19. The pseudo tower system of
20. The pseudo tower system of
21. The pseudo tower system of
wherein said action facility is at least one of: a telco switch, a picocell, an IP backhaul, a PBX switching system, a jamming unit, a transmitting unit, hold channel, an IP backhaul, a channel, a communication module, a soft switch, a switch, a femtocell, a wide area wireless communication channel, a Macro wireless network, a PBX Module, a communication module, a data filter, a software filter, a wireless receiving unit, a base station, a satellite communication station, a camera system, a recording and transmission system, a graphical display, a text message system, a commercial carrier, a telephone company, a wireless telephone company and a wireless service provider.
22. The pseudo tower system of
23. The pseudo tower system of
manipulate said identified wireless device when said allowability is indicated to be unallowed.
24. The pseudo tower system of
determine a location of the identified wireless device based on at least one of: a cell-sector system, an assisted-global positioning satellite, a GPS chipset technology, a standard GPS technology, a detected transmission signal enhanced-observed time difference technology, a detected transmission signal amplitude, a detected transmission signal time difference of arrival, a detected transmission signal time of arrival, a detected transmission signal angle of arrival, a triangulation of the detected transmission signal based on proximity to known locations and said transmission facilities, and a map-based location.
25. The pseudo tower system of
26. The pseudo tower system of
indicate said identified wireless device is allowed when said identified wireless device is outside the area.
27. The pseudo tower system of
disable all features of said identified wireless device except voice communication during contact with an emergency number, when said identified wireless device is indicated as unallowed.
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This application claims the benefit of the earlier filing date, pursuant to 35 USC § 120, as a continuation:
Patent application Ser. No. 13/887,300, further claims the benefit of the earlier filing date, pursuant to 35 USC 119, to that provisional patent application, entitled “Systems and Methods for Detecting and Controlling Transmission Devices” filed on May 4, 2012 and afforded Ser. No. 61/642,526. The entire contents of which are incorporated by reference, herein.
The application further claims the benefit of the earlier filing date, pursuant to 35 USC § 120, as a continuation:
to that patent application entitled “System and Method of Detecting and Controlling Transmission Devices,” filed in the United States Patent and Trademark Office on May 4, 2013 and afforded Ser. No. 13/887,300, which claimed the benefit of the earlier filing date, pursuant to 35 USC 120 as a continuation-in-part:
to that patent application entitled “Wrist Band Transmitter,” filed in the United States Patent and Trademark Office on Sep. 2, 2008 and afforded Ser. No. 12/231,437, which claimed the benefit of the earlier filing date, pursuant to 35 USC § 120, as a continuation-in-part to that patent application entitled “Tracking and Determining a Location of a Wireless Transmission,” filed in the United States Patent and Trademark Office on Jun. 11, 2008 and afforded Ser. No. 12/157,530, ((now U.S. Pat. No. 8,238,936), which claimed the benefit of the earlier filing date, pursuant to 35 USC § 120, as a continuation-in-part to that patent application entitled “Systems and Methods of Detection Transmission Facilities,” filed in the United States Patent and Trademark Office on Jul. 14, 2006 and afforded Ser. No. 11/457,786, (now U.S. Pat. No. 8,078,190), the entire contents of all of which are incorporated by reference, herein.
This application is related to co-pending patent application entitled “Systems and Methods of Detection of Transmission Facilities,” filed on Jul. 27, 2009 and afforded Ser. No. 12/510,006, which claimed the benefit, pursuant to 35 USC 120, as a continuation of that patent application entitled “Systems and Methods of Detection Transmission Facilities,” filed in the United States Patent and Trademark Office on Jul. 14, 2006 and afforded Ser. No. 11/457,786, (now U.S. Pat. No. 8,078,190), the contents of all of which are incorporated by reference, herein.
This invention relates to the field of wireless transmission and more particularly controlling the use of wireless communication devices in confined areas.
There are many facilities, such as government buildings, and in particular correctional facilities, such as prisons, that do not permit cellular phone usage or wireless transmission devices on the premises or even possession of cellular phones within the premises. Finding and preventing usage of cell phones and other transmission facilities is difficult, and a need exists for improved methods of detecting, locating, and managing the transmission of such devices particularly when an emergency call is initiated.
Provided herein are methods and systems for locating transmission devices (or transmission facilities) such as cellular phones, cell phones, mobile phones, satellite phones, radios, transmitters, PDAs, beepers, pagers, walkie-talkies, email devices, instant messenger devices, voice over IP devices, and other types of wireless communication or transmission facilities whose possession is prohibited. In addition, control of the devices is important as such wireless devices are known to be used to detonate bombs, as in the case of improvised explosive devices. The methods herein are also to positively identify, locate and track individuals with such transmission facilities. For example, the system provides the location and tracking of one or more individuals who utilize a wireless device to communicate and further determines whether the individual is authorized to transmit within a general area local to the individual. In one aspect, law enforcement may be interested in tracking the individual's identification and movements.
Methods relate to locating and managing the use and presence of wireless communication facilities are further disclosed. Embodiments relate to detecting wireless devices when they transmit a signal are further disclosed. Other embodiments relate to detecting of transmission devices when the transmission devices (i.e., facilities) are in a non-active transmission active state.
In embodiments the methods and systems disclosed herein include methods and systems for detecting a transmitting device within an obstruction rich environment. The methods and systems may include detecting the transmitting device within a wireless detection transmission facility; communicating signal information relating to the detected transmitting device from the wireless transmission detection facility to a central unit; determining the location of the transmitting device; displaying information of the detection and location of the transmitting device through a user interface; and providing the information to an action facility for causing actions related to the detected transmitting device. In embodiments, the wireless transmission detection facility is an antenna. In embodiments, the antenna is a dual dipole embedded antenna. In embodiments, the dual dipole embedded antenna is tuned to receive cell phone transmissions. In embodiments the dual dipole embedded antenna is tuned to receive a frequency band of approximately 700 to 950 MHz. In embodiments the dual dipole embedded antenna is tuned to receive a frequency band of approximately 1.7 to 2.0 GHz. In embodiments the dual dipole antenna is tuned to receive signals in frequency bands of approximately 700 to 950 MHz and 1.7 to 2.0 GHz. In embodiments the obstruction rich environment is a correctional facility. In embodiments the obstruction rich environment is a mall. In embodiments, communicating the information relating to the detected transmitting device from the wireless transmission detection facility to a central unit involves wireless communications. In embodiments, the wireless communications are 802.11 communications. In embodiments, determining the location of the transmitting device is accomplished through transmission triangulation. In embodiments location of the transmitting device is accomplished through a known location of a single antenna. In embodiments the location of the transmitting device is determined based on extrapolation of the receipt of a plurality of received signals through a series of non-iterative linear equations.
Disclosed is a system for managing wireless transmitting devices in which a wireless transmission from a transmission device is detected within or about a set area and an allowability of the transmission device to continue transmitting is based on an identification information, of the device, a location of the device and a number being called by the device.
The systems and methods described herein may be understood by reference to the following figures:
Detection of a transmission facility, such as a mobile phone or hand-held radio transmitter, or other transmission facility as described herein, within an obstruction rich environment, such as a facility with many physical barriers to electronic transmission, is difficult to achieve. Referring to
In embodiments the antenna 104 may be a multi-dipole embedded antenna. Two examples of dual dipole embedded antennas are provided in
In embodiments, the transmission facility 202 may be a mobile phone, such as a flip phone, a slide phone, a cellular phone, a handset, a satellite phone, a 3G phone, a wireless phone, a cordless phone or the like. In embodiments, the transmission facility 202 may be a radio, such as a Walkie-Talkie, a mobile radio, a short-wave radio, or the like.
In embodiments, the transmission band from the transmission may be within the radio or other electromagnetic frequency spectrum, such as extremely low frequency (ELF), super low frequency (SLF), ultra-low frequency (ULF), very low frequency (VLF), low frequency (LF), medium frequency (MF), high frequency (HF), very high frequency (VHF), ultra-high frequency (UHF), super high frequency (SHF), extremely high frequency (EHF), microwave, a frequency suitable for 802.11x wireless communications, ultra-wide band (UWB), Bluetooth, or the like.
In embodiments, the obstruction rich environment 102 may be a building, such as a corrections facility, a school, a government facility, a store, a mall, a residence, a hotel, a motel, or the like. In embodiments, the obstruction rich environments 102 may be a large confined space, such as a courtyard, a food court, a recess area, a hallway, greenhouse, recreation room, gymnasium, auditorium, kitchen, cafeteria, craft area, work area, library, prison yard, or the like. In embodiments, the transmission obstruction 102 materials such as cinderblock, cement, rebar, wire cage, metal, metal coated surface, or the like. In embodiments, the obstructions in the obstruction rich environments 102 may be other construction materials, such as wood, glass, rug, flooring materials, roofing materials, and the like.
In embodiments, the transmitting signal information from the antenna 104 module to the central unit 110 may be through a communications connection, such as an IEEE 802.15.4 wireless network, IEEE 802.11 Wi-Fi, Bluetooth, Ethernet, and/or other similar type wireless communication protocols. In embodiments, the communications connection may utilize CAT-5, RJ-45, RS-232 connections, and/or other similar type wired communication protocols and hardware. In embodiments the communications connection may utilize an optical connection, such as a wireless infrared link, wireless visible light, an optical fiber, and the like.
In embodiments, the transmitting signal information from the antenna 104 module to the central unit 110 may contain data, such as CDMA, CDPD, GSM, TDMA, and the like, and may be used to discriminate which service signal is being used, such as Verizon, Cingular, T-Mobile, Sprint, and the like. The detection of the cell phones may be further resolved down to cell phone manufacturer and cell phone provider.
In embodiments, the transmitting signal information to the central unit 110 may be made through an intermediate connection, such as a substation 108, router, switch, hub, bridge, multiplexer, modem, network card, network interface, processing unit, preprocessor, computer, repeater, antenna 104, and the like. (see
In embodiments, the central unit 110 may have in part a computer, a computer system, a network of computers, a state machine, a sequencer, a microprocessor, a digital signal processor, an audio processor, a preprocessor, a microprocessor, and the like.
In embodiments, the central unit 110 may process information, such as location information, such as the location of people, inmates, corrections personnel, visitors, all personnel within the facility, equipment, resources, weapons, products, incoming goods, outgoing goods, and the like. In embodiments, the information may be a type of signal, such as mobile phone standard protocols such as CDMA, CDPA, GSM, TDMA, and the like. In embodiments, the information may be an event notification, such as personnel under duress, an emergency medical condition, a call for assistance, a fire, a call for police, a theft, and the like. In embodiments, the processed information may allow for the tracking of the person or object in possession of the transmission facility 202, such as a mobile phone, a radio, a weapon, a product, a resource, and the like. In embodiments, the processed information may allow for the discrimination and/or association between people or objects, such as determining the ownership of the transmission facility 202, the assignment of the source of transmission, current location of a transmission facility 202 compared to its predicted location, and the like. In embodiments, the processed information may also have time codes and unique identifiers assigned.
In embodiments, the central unit 110 may have a display 112, such as a cathode ray tube (CRT), liquid crystal display (LCD), electronic paper, 3D display, head-mounted display, projector, segmented display, computer display, graphic output display, and the like. In embodiments, the central unit 110 may have an action facility 114, comprising a user interface for causing actions relating to the detected transmission facility 202. Actions may for example represent operations such as closing a door, sealing a room, deploying and action signal, initiating an alarm, and the like.
In embodiments the functions of a central unit 110 as described herein may be replaced by an alternate configuration, such as a configuration of multiple computers, such as a group of servers, processors, or the like, operating in parallel. In embodiments the methods and systems described herein may involve locating computing capabilities in alternative network configurations, such as in a mesh network or a peer-to-peer network.
In embodiments, the location of a transmission facility 202 may be determined by various radiolocation or signal measurement techniques, including measuring phase, amplitude, time, or a combination of these; or by identifying and locating an area associated with an antenna 104 with the highest signal strength. In embodiments, the location of a transmission facility 202 may be determined when the transmission facility 202 is powered off though detection of a null in the band-pass of a transmitted frequency sweep due to the presence of a mobile phone antenna.
In embodiments, a method of detecting a transmission facility 202 (e.g. cell phone) when the transmission facility 202 is not powered may require a transmitting device and a receiving device that can recognize the signature of an antenna 104 associated with the transmission facility 202. By transmitting a known frequency and receiving the disturbance pattern produced by having a particular antenna 104 design in the transmission path, the pattern or ‘signature’ of that antenna 104 can be characterized. In embodiments, this characterization may be evaluated by central unit 110 with results output to a display 112. A database of these signatures can be placed into the unit, and as the transmitter sweeps across the various cell frequencies, a pattern received can be matched against the database patterns to determine the presence of transmission facilities 202. In embodiments, any class of antenna (e.g. WI-FI, Blackberry, Walkie-Talkie, etc.) can be classified and identified.
In embodiments, the range of a hand held device that can detect an inactive transmission facility is approximately 10 feet. In embodiments, greater distances could be attained for stationary units by increasing the power.
Radiolocation, also referred to as radio-determination, as used herein, encompasses any process of finding the location of a transmitter by means of the propagation properties of waves. The angle, at which a signal is received, as well as the time it takes to propagate, may both contribute to the determination of the location of the transmission facility 202. There are a variety of methods that may be employed in the determination of the location of a transmission facility 202. Methods include (i) a cell-sector system that collects information pertaining to cell and sector ID's, (ii) the assisted-global positioning satellite (GPS) technology utilizing a GPS chipset in a mobile communication facility, (iii) standard GPS technology, (iv) enhanced-observed time difference technology utilizing software residing on a server that uses signal transmission of time differences received by geographically dispersed radio receivers to pinpoint a user's location, (v) time difference of arrival, (vi) time of arrival, (vii) angle of arrival, (viii) triangulation of cellular signals, (iix) location based on proximity to known locations (including locations of other radio-transmitters), (ix) map-based location, or any combination of any of the foregoing, as well as other location facilities known to those of skill in the art.
Obstructions to radio wave propagation in the obstruction rich environments 102 may greatly reduce the effectiveness of many of the conventional radiolocation methods due to obstruction of the line-of-sight between the transmission facilities 202 and the receiving antennas 104. However, by employing a large array of antennas 104, positioned so as to maintain line-of-sight between possible transmission facility 202 locations and the receiving antennas 104, several of these methods may be effectively used in the location of the transmission facility 202. These methods include time difference of arrival, time of arrival, and angle of arrival, amplitude comparison, and the like. The time difference of arrival method determines the difference in the time, or the difference in phase, of the same radio-transmitting signal arriving at different receiving antennas 104. Together with the known propagation speed of the radio wave, allows the determination of the location of the transmission facility 202. The time of arrival method determines the absolute time of reception of the signal at different receiving antennas 104, and again, along with the known propagation speed of the radio wave, allows the determination of the location of the transmission facility 202. The angle of arrival method utilizes direction of transmission to different antennas 104 to determine the location of the transmission facility. Amplitude comparison method compares the strength of the signal detected at each antenna to determine the location of a transmission facility 202. For example, two antennas 104 located in the same room would detect different signal amplitudes for the same transmission facility 202 output, thereby providing a means of determining which antenna 104 the transmission facility 202 is closer to. Increasing the number of antennas 104 therefore increases the resolution with which the location of the transmission facility 202 may be determined. All of these methods, and combinations of these methods, may employ mathematical processes such as triangulation, trilateration, multi-lateration, or like, in determining the location of the transmission facility.
Triangulation is the process of finding coordinates and distance to a point by calculating the length of one side of a triangle, given measurements of angles and/or sides of the triangle formed by that point, such as the target transmission facility 202, and two other known reference points, such as the receiving antennas 104. The calculation of the location of the transmission facility 202 may then be performed utilizing the law of Sines from trigonometry. Tri-lateration is a method similar to triangulation, but unlike triangulation, which uses angle measurements, together with at least one known distance, to calculate the subject's location, tri-lateration uses the known locations of two or more reference points and the measured distance to the subject, such as the transmission facility 202, and each reference point, such as the receiving antennas 104. Multi-lateration, or hyperbolic positioning, is similar to tri-lateration, but multi-lateration uses measurements of time difference of arrival, rather than time of arrival, to estimate location using the intersection of hyperboloids.
While several radiolocation and triangulation techniques have been described in connection with locating the transmitting device, it should be understood that one skilled in the art would appreciate that there are other location methodologies and such location methodologies are encompassed by the present invention. For example, in embodiments, the location of a single antenna may be known and the single antenna may detect a transmitting device. The location of the transmitting device may be estimated through its known proximity to the single antenna location. This may provide adequate location resolution for certain applications of the technology. Similarly, two or more antennas may be used and each of the antenna locations may be known. When each of the antennas receives a transmission, the corresponding signal strengths may be compared. The one with the highest signal strength may be determined as the one closest to the transmitting device so the corresponding antenna location may provide enough location resolution for certain applications.
In an embodiment of the transmission detection, identification, and reporting system 100, a corrections facility, with its substantial and inherent obstruction rich environment 102, presents a significant challenge to authorities of the correction facilities. In an embodiment of the invention shown and described herein, the system may be placed throughout the corrections facility for the purpose of alerting the corrections staff that cell phone activity is taking place, the location of the activity and the type, i.e., Nextel, T-Mobile, Verizon, and the like. The following technology may also allow for a standalone detection unit 408 or set of detection units 408 (see
In an embodiment, the system may include an integrated antenna 104 and RF detector (together referred to as a detector unit 408) (
In an embodiment, within these basic groups of detection units 408 may be various detection unit 408 types. Some detection units 408 may be designed to be hard wired via RJ-45 connectors and/or CAT 5e cable, other detection units 408 may use 802.11b (WI-FI) wireless communications between detection units 408, and there may also be an Infra-Red (IR) set of detection units 408 which utilize optical communications techniques. Each communications type may have a specific purpose within the corrections facility or other type of building and/or areas. Hard-wired units may be used when it is not possible to use either an optical unit or a WI-FI unit. Used when there are walls embedded with metal or where the distance and the obstructions 102 may preclude a wireless technique. WI-FI detection units 408 may be used when it is effective to communicate in an area where there are obstructions 102 such as cement walls or cement with embedded rebar walls, facades, and the like. Optical detection units 408 may be used in areas where clear, line-of-site communications may be possible. Optical detection units 408 may operate over relatively long distances, (e.g., 3,000 feet), while WI-FI detection units 408 may be limited to shorter distances, such as 250 feet.
In an embodiment, there may also be a hand-held detection units 408 to be used once a cell phone has been detected, and the corrections officer(s) or monitor are attempting to pinpoint the location. This hand-held detection unit 408 may be similar to the integrated antenna/detector unit of the main system. This embodiment may also include a detector, discriminator and decoder module. The hand-held detection units 408 may detect and identify each cell phone and compare the cell phone identity to the allowed cell phone user list or in this case to a list of unauthorized cell phones. This detector unit 408 may output an audible alarm whose pitch changes as the signal becomes stronger or weaker.
In an embodiment, a second type of hand-held detector unit 408 may be used to detect a cell phone when it is either off or in a standby condition, also referred to as null detecting. Null detection may be used at an ingress or egress of a building or an area as a way of detecting a communication device or device with an antenna. This technique may be used in areas where it is unpractical, unwanted or unwarranted to have x-ray machines or more intrusive detection systems. A null detection system may also be deployed in a handheld device so an inspector can move through an area attempting to detect a communication device. In embodiments, the null detection system may detect the presence of a transmission facility even when the transmission facility is not transmitting a signal. In embodiments, a hand held or mounted null detection device may be used in a correctional institution or other government facility.
In embodiments, null detection may utilize a transmission-detection source, independent of the transmission source being detected, which is capable of sweeping across the frequency spectrum of interest and receiving its returning signal. The transmission source sweeps the spectrum of interest, searching for distortions in the returned field. Distortions in the spectrum may be due to the presence of an antenna of a transmission facility 202. Matching the distortion, also referred to as a null in the band pass, to characteristics of known antennas used with mobile phones may allow the detection and/or identification of the transmission facility 202. The unit may output an audible “beep” if it detects a null, allowing the officers to focus in on the location of the cell phone. The range of the hand-held detection units 408 may be, for example, 15 to 20 feet. This will allow cell phones that are in the immediate vicinity to be quickly detected. The null detection may be applicable for ingress and/or egress detection.
In an embodiment, a survey may be performed to determine optimal placement and the type and number of detection units 408 required. This will insure the minimum number of required detection units 408 to perform optimal detection. The team may provide a report detailing the layout determined to be optimized for the facility and may review this report with the facilities staff so that any required modifications to the plan may be incorporated before installation is begun.
In an embodiment, the initial coverage of a facility may be in the cell blocks 402 (
In an embodiment, the cell block detection units 408 may be mounted inside each chase 404 (a column positioned between cells in a cell block that includes various utility facilities, such as for plumbing and electricity), as shown in
In an embodiment, detector units 408 may be installed in open areas such as gymnasiums, kitchens, cafeterias, craft and work areas and other open areas where a cell phone may be used. The difference in these locations from the cell blocks 402 may include the method of detection and tracking. Since most facilities may only require the identification of a cell phones presence within a room, and there could be many inmates within that room, the process may be to lock-down the room, or rooms, in that area and use a hand held device and a physical search to pinpoint the phone location. A generalized block diagram of a detector unit 408 is shown in
In an embodiment, facilities with the requirement to detect cell phones 202 in outside yard areas, the use of triangulation to a 25×25 foot space or smaller foot space (e.g., 5×5 foot) may be constructed. As a phone 202 is moved from area coverage 702 to area coverage 702, the system may track its movement. Each square foot sector may overlap an adjoining sector. In this way, as shown in
In an embodiment, it may also be important to know whether a phone is located on one side of an obstruction or the other, such as doors, walls, and the like. If the wrong room is identified, it may make it more difficult to locate a phone and its user. As shown in
In an embodiment, when sectoring a large room such as a gymnasium, the number and placement of antennas 104 may be critical. In order to sector large regions, such as a 10×10 foot section, within the room, the antenna 104 may need to be capable of narrowing their window to an area small enough to meet the requirement. In
In an embodiment, the transmission detection, identification, and reporting system 100 may work in conjunction with a personal alarm system, or an inmate tracking system, or a combination of all three and the like. This dual/tri role system(s) may allow for more cost effective use of the detection units 408 and provide for greater protection for the correctional officer and inmate alike. This detection system may utilize an individualized frequency, with known frequency separation between detection units 408 and between corrections officer's frequencies and Inmate frequencies. The detection configuration of the detection units 408 may provide complete coverage of the facility. Each transmission facility unit may be continually tracked throughout the facility. At all ingress or egress points the focus of the detection may ensure accurate location of all correctional and inmate personnel. With the combined systems more detection units 408 may be needed to ensure full coverage. In an embodiment, the known identity of the transmission facility, in this case a cell phone being carried and/or used by an officer or inmate can be accurately associated with another known identity of another transmission facility, in this case a corrections officer and/or inmate wearing a transmission facility. In this embodiment, the use of an authorized cell phone or an authorized transmission facility by an unauthorized person can be accurately detected and reported. This embodiment can be utilized inside the facility or outside the facility.
In an embodiment, the transmission detection, identification, and reporting system 100 may allow for cell phone owner discrimination. The system may provide for the allowance of authorized cell phones within the prohibited area. The system may detect and identify each cell phone and compare the cell phone identity to the allowed cell phone user list. The system may record all phone use and may automatically alert the facility of all prohibited cell phone use. In addition, each cell phone detection event may be identified with a unique identifier and time code, to ensure proper identification. The CCTV system may also be integrated to ensure greater accuracy identifying illegal use of wireless transmission devices.
The cell scan-1 detection system 1000, shown in
The cell scan-1 detection system 1000, shown in
In an embodiment as shown in
The cell scan-2 detection system 1100, shown in
The main board system 1200, shown in
The sub-station system 1300, shown in
In embodiments of the system described herein, detection levels may be determined by which output levels are possible with the various cell phone technologies that are in use today. Since the system described is an amplitude system, the strongest and weakest possible signals must be determined in order to identify the system's required dynamic range. Cell phone signals vary from −22 dBW to 6 DBW and this range defines the detection requirements of the system. This translates to a maximum signal of 4.0 Watts at the antenna. The minimum value is equal to 0.006 Watts or 6 milliwatts. Therefore, the dynamic range required is −52 dBm to +36 dBm. In order to achieve such a dynamic range, an amplifier that is gain adjustable is required such that with an input value of +36 dBm, the amplifier is not saturated.
In the embodiment, the system determines the characteristics required to insure that each cell phone is correctly identified. The amplitude of each signal is determined which allows the system to determine which sensor (i.e., transmission detection facility, antenna) has received the largest signal. The system time stamps each data sample so that other sensors receiving the same signal will be recognized as such when the data is presented for analysis. Each sensor analyzes the wave shape of the signal detected. Each transmission type (i.e., CDMA2000, PCS, TDMA, GSM, IS-95, etc.) has a unique wave shape. These wave shapes allow the analysis software to recognize that signals seen in different parts of a facility can be associated with each other (using time and wave shape) and the signal that consistently contains the largest amplitude will be identified as closest to the cell phone transmission
In embodiments of the invention, signals directed toward an IED (improvised explosive device) may be intercepted, identified and denied service. Such interception may be up to a known range in forward and side quadrants. The identification and determination of the position of the person or persons using a satellite phone and/or land-based cell phone may be determined. Cell phones, as well as other RF devices, e.g., garage door openers, walkie-talkie, etc., may be captured, identified and/or jammed that are attempting to activate or contact the IED.
In embodiments of the invention, when a cell phone, for example, is on, but not in an active communication, the cell phone is essentially invisible to anyone attempting to monitor cell phone activity. In order to be aware of the existence of such “on but not transmitting devices” the system described herein operates as a cell tower. That is, the system actively addresses the problem of cell phone detection by operating (becoming) the tower. A vehicle with similar but modified equipment to that of a cell tower may actively poll the area of phones that are “on but not in a communication of any sort.” The vehicle (i.e., Pseudo Tower) collects the current database of active phones and those phones in standby from the tower(s) in the area and uses this data base to poll these phones in order to locate them. Once potential phones that could be possible detonation cell phones are identified and located, the Pseudo Tower would affect a handoff and make itself the active tower. Thus, the captured cell phones are not allowed to rotate back to (i.e., connect to) the local cell phone tower, insuring that any calls attempting to communicate with the detonation cell phone will not be sent. As one of the goals is to identify the person who is attempting to contact the detonation cell phone, a call history of each suspect cell phone may be analyzed.
When a caller attempts to activate an IED, the caller's presence can be identified. Furthermore, the call being made is not forwarded to the detonation cell phone and the IED will not be activated. By determining a peak angle (triangulation) the caller's cell phone/satellite phone signal, the direction of the caller is then known. Direction identification is performed by using a technique such an interferometry. In this case, multiple antennas employing interferometry may be used to scan through the current cell phone traffic identifying first, candidate threats and then, pinpointing high probability locations which can be viewed through a high powered binoculars to determine whether the candidate is in need of investigation. Criteria for determining which cell locations may be threats is a pole or road sign, etc. The Pseudo Tower may continue controlling all of the phones in the area, preventing any forwarding of calls until all possible threats have been cleared. At this point, the personnel have the option of going after the caller or deactivating the IED, or both. It would be possible to clear the area and detonate the device later if that is a desired plan of action.
Given the varying parameters by which detonation can take place, the Pseudo Tower may also be designed to deny service to any active and inactive phone within a given geographical area and pinpoint the location of said phones.
Satellite cell phone transmission presents a somewhat different problem. Since the transmission from phone to satellite to phone is communicated to a number of satellites, becoming a replacement for the satellite will require cooperation from the provider. Via one or more specific codes, the satellites may be told that the vehicle mounted satellite simulator (i.e., Pseudo Tower) will be taking over the control of phones within a certain radius. Since this is a moving or ever changing circle, the replacement “satellite” will have to continuously update the actual satellite of its position and which phones are being released and which phones are being controlled. Once this function has been implemented, the control of the suspect phones is similar to that of the cell phone. Determining the caller's position and the location of the detonation phone is as above.
The wideband RF amplifier 1606 is connected to a Logarithmic amplifier 1607 (i.e., log amp) that amplifies the received or detected signal using an logarithmic function. Log amplifiers are well-known in the art to provide a larger amplification of a weak signal and a smaller amplification of a strong signal. The output of Log amplifier 1607 is provided to an Operational amplifier (OpAmp) 1608. The OpAmp 1608 amplifies the input signal and provides the amplified input signal to an A/D converter 1609 for conversion of the input analog signal to a digital signal. The converted (i.e., digital) signal is then provided to a FPGA (Field Programmable Gate Array) 1610 for subsequent processing. FPGA 1610 controls the operation of the illustrated Cell Phone and Wireless Transmission Detection Facility 1600 through feedback signals to switch 1605, for example. FPGA 1610 controls which signal frequency band and signal frequency is evaluated in what sequence. In the illustrated embodiment, FPGA 1610 communicates with the other sensors and/or access points via a communication interface 1612. In one aspect of the invention, communication interface 1612 may communicate with one or more wireless communication devices that operate using well-known IEEE wireless standard communication protocols (e.g., 802.15 and 802.11). In another embodiment, the communication interface may operate as a transceiver (transmitter/receiver) that may interface with two-way wireless transmission devices such as Walkie-Talkie or cellular telephone phones. The FPGA 1610 also interfaces with a microprocessor 1613, e.g., a Zilog Z86, an Intel xx86 series, Motorola Power PC. Processor 1613 may assist in the decoding, and operation of the Cell Phone and Wireless Transmission Detection Facility 1600. FPGA 1610 and the microprocessor 1613 may be synchronized by a crystal clock 1614. In other embodiments of the invention, the communications may be via a category 5 network interface connection in conjunction to the communication Interface 1612. Although an FPGA is referred to and illustrated in the embodiment of the invention, it would be recognized by those skilled in the art that the processing described by the FPGA may also be performed in other specific processor processors (e.g., ASIC) or may in general purpose processor which when loaded with and executing an applicable software module converts the general purpose processor into a special purpose processor. As would be recognized, the system shown in
Returning to the embodiment of the Cell Phone Detection, Control, and Position Identification system shown in
The embodiment shown in
In accordance with one embodiment of the invention, the jammer units 1501 may jam or interfere with one or more frequencies or frequency bands to force wireless communication device within a local area to lose contact with an available base station and/or access point and to reacquire a connection to a local base station cell tower and/or access point. When the transmission facility (wireless communication device) initiates a process (referred to as hand-shake) to re-acquire a communication link with the available local base station cell tower, the communication link is diverted to a, and re-acquired by, the detection system 1500 (which is referred to as a pseudo-base station) due to the greater signal power of the pseudo-base station. In another aspect of the invention, the pseudo-base station power is raised so as to be greater than an actual cell tower signal strength. Thus, the cell phone, for example, will transition to the larger signal strength of the pseudo-base station and establish a communication with the pseudo base station. In a further aspect of the invention, the pseudo-base station may actively poll the area for cell phone (transmission facilities), and trigger the cell phones within an area of interest to cause the cell phones within the area to attach to the pseudo-base station.
In one aspect of the invention, where the application is to control the transmission facility within a local area, and to prevent communications from reaching the transmission facility of interest, the pseudo-base station may deny transmission of signals from the transmission facility to an actual base station or deny transmission of signals from the base station to the transmission facility.
In an embodiment of the invention where it is important to identify and not control the transmission facility within an area of interest providing greater power, polling, control line request, interleaving existing towers and/or jamming to force the transmission facility to communicate its identification parameters. In this embodiment of the invention, gaining control of the cell phone (or wireless communication device or transmission facility) within the area of interest allows the system to prevent incoming and/or outgoing communications. Thus, as the wireless communication device is re-acquiring a communication link with the access point or base station, the wireless communication device provides its identification information that positively identifies each transmission facility within the area of interest. This identification information may be provided to the actual cell tower provider, which uses this information to individually disable the cell phone (transmission facility) from receiving or transmitting data, voice and/or communicating in any manner.
In an embodiment, the detection system 1000 (see
In an embodiment, of the Cell Phone Detection, Control, and Position Identification System shown in
In an embodiment where information redundancy and positive authorization is important and positive identification is critical, the tools used in the school bus safety application egress point and school tracking system have direct applicability to positive identification of personnel and prison system automation, cost effectively tracking and monitoring lower threat classified inmates and staff and inmate safety. Safety application and tracking systems are more fully disclosed in the aforementioned related patent applications, whose contents are incorporated by reference herein. The tools and application described may include facial recognition, retina scan technology, card swipe, fingerprint analysis, in preventing escapes and misidentification within a prison environment.
In an embodiment where positive identification of the transmission facility 202 and positive identification of the user of the transmission facility 202 is important, as discussed earlier hand-held detection units 408 detector decoding module (and or chipset) or a hand-held detection units 408 in sync with the pseudo-base station/wireless access point module provides the location and the identification of the transmission facility 202 or in this case, for example a cell phone or a 802.xx (e.g., 802.11a/b/g/n, 802.15) communication device. In corrections facilities, outside areas of the facility, for example a large area like Angola state prison, a close-circuit television (CCTV) in synchronization with, or in communication, with the hand-held detection units 408 allows the CCTV to focus on the user of the cell phone. The CCTV system feeds images to the facial recognition software and a database of all known personal and/or inmates, to find a match and/or create an entry of new found cell phone and their owner's and or user's identity. In the case of a prison application, building a database of know criminals their associate and biometric information, including facial recognition, for data mining purposes is critical An example, where inmates are passing contraband and using cell phone to coordinate their efforts. where positive identification of the transmission facility 202 and positive identification of the user of the transmission facility 202 is important, utilizing cell phone identification, location tracking and positive identify of the criminals involved is crucial to preventing and stopping their criminal enterprise.
In another embodiment and application where positive identification of the transmission facility 202 and positive identification of the user of the transmission facility 202 is important, as discussed earlier the hand-held detection units 408 detector decoding module (and or chipset) or a hand-held detection units 408 in sync with the Pseudo-base station/wireless access point module provides the location, in school safety where a student's location and a perpetrator who preys on school students, the tagging of visitors, student and employees is critical. In this application, CCTV and facial recognition, for data mining purposes of student, facility visitors (wanted or unwanted) is critical. The embodiment includes an allowance unit which determines who is allowed within the facility and/or area and who is suspect and who is a known danger. Tracking all transmission facilities and making positive identification of all communications. Utilizing CORI and SORI databases of known perpetrator of students to detect when a threat is near around or in a school facility is critical to school safety.
In embodiments, a method of detecting, identifying and tracking the movements of a specific transmission facility 202 in standby requires provoking and/or requiring the transmission facility to transmit a signal and to detect their unique identification. As discussed and explained previously, a hand-held detection units 408 with an integrated identification detector/decoding module (and or identification chipset module) and/or a hand-held detection units 408 which functions in conjunction base station and/or wireless access point technology, blocking and/or jamming technique in concert of the identification function provides the tools to detect the transmission facility, track its location, and to detect its unique identification.
In the embodiment of
In the embodiment of
In this embodiment, where there is limited, corrections personnel, all cells will be designed to allow outdoor access and unit access. The facility structure, may need to be modified to allow inmate access to the outdoor area, this design modification eliminates the need for outside movement and still provides greater freedom for the inmates with less need for direct supervision.
In this embodiment, for medical reasons all inmates will wear two transmission detection sensors. Each sensor will monitor biometric signs including heart rate, temperature, and the like. With two wristbands echo cardiogram can be generated with provide for health monitoring and for positive identification. The Cell Phone Detection, Control and Position Identification system 1500 (
In this embodiment, the wireless communication of the sensors will also carry education information and data to each of the inmate cells. As earlier described, the ideal location of sensors may be in water-chases to prevent tampering. This also provides the opportunity to have wireless communication with education units within the cells. This wireless communication also provides the ability to as wireless surveillance devices such as cell monitoring into the mix.
In this embodiment where inmate programs, services, commissary, inmate phones, medicine distribution, vending machines, GED education, needs to be inmate specific, positive identification is a critical must. To ensure this outcome, the positive identification of each transmission facility is paramount. An example of this embodiment, when an inmate approaches an education display system, the unique identifier of the inmate's transmission facility, provides information to the transmission facility detector of the unique identifier of the transmission facility. A database controls and provides all the applicable information to provide the correct information for each transmission facility. In this case, the transmission facility is a wristband ID bracelet.
In an embodiment, the transmission facility is a cell phone, PDA or a Wi-Fi appliance, the education display system is an interactive display screen in a school telling the school supervisors that one or more students or personnel needs to turn off his cell phone, or a hospital advising a specific visitor by name, that cell phone even in standby may cause harm the medical devices being used to treat patients or the transmission facility provides information to the transmission facility detector of a unique identifier of the transmission facility via an interactive screen on the road side to tell a user to slow down as he is speeding. These are just examples of uses of the system illustrated. In addition, the system illustrated may be connected to any data mining database (not shown) to provide customized information to any transmission facility and specific information to a uniquely identified transmission facility.
In an embodiment where the classification of inmates is such where many inmates can co-exist in an inside and outside (minimum security, non-violent, criminals and the like) the use of CCTV, facial recognition and laser microphone, and inmate tracking and a database driven set of rules and parameters, coupled with the combined technologies mentioned this application. This provides the solutions to reduce the number of employees while maintaining a high level of safety and security.
In an embodiment of
In the embodiment of
Knowing the frequency and time of the transmission facility 202 transmissions provides the ability to tighten the bandwidth of the detection sensors, which increases sensitivity, and thus provides greater distance of detection. It also provides an intercept, in time and frequency providing for faster processing of signals. One technique is for the transmission detection sensor to tell the base station and/or enabling technology when to transmit and also indicate the desired response frequency and/or channel. Another methodology is to regulate and/or schedule the transmission time of the base station(s) and/or enabling technologies within geographical areas and set parameter on the direction, radiation pattern, zone, and strength of the signal being transmitted to regulate a number of transmission facility(s) contacted and/or regulating the number of responding transmission facilities.
In an embodiment, in a corrections complex, such as Angola State Prison, or a arbitrarily defined area where transmission facilities 202 are prohibited except for authorized transmission devices, the transmission detection, controlling, identification, and reporting system 100 whether internal or external to the facility may control, identify and prohibit transmissions from transmission facility 202 depending on the location or approximate location of the transmission facility 202. There are a variety of methods that may be employed in the determination of the location of a transmission facility 202. Methods include (i) a cell-sector system that collects information pertaining to cell and sector ID's, (ii) the assisted-global positioning satellite (GPS) technology utilizing a GPS chipset in a mobile communication facility, (iii) standard GPS technology, (iv) enhanced-observed time difference technology utilizing software residing on a server that uses signal transmission of time differences received by geographically dispersed radio receivers to pinpoint a user's location, (v) time difference of arrival, (vi) time of arrival, (vii) angle of arrival, (viii) triangulation of cellular signals, (ix) location based on proximity to known locations (including locations of other radio-transmitters), (x) map-based location, or any combination of any of the foregoing, as well as other location facilities known to those of skill in the art. In one aspect of the invention, the location may be determined using a method of non-iterative linear equations.
In an embodiment of the transmission detection, controlling, identification, and reporting system 1500 whether to control the transmission facility 202, may be determined by location of the transmission facility 202, type of transmission facility 202, identification of transmission facility 202, time of transmission of the transmission facility 202, frequency of the transmission facility 202, based on type of base station technology and/or location of base station technology and the like.
In an embodiment of the transmission detection, controlling, identification, and reporting system 1500 where the system is in synchronization with base station technology and techniques correlate the wireless signals, wherein the unique identifier is supplied by the base station when the transmission facility is stimulated by the jammer and/or base stations unit. Then the transmission facility is tracked and its interest is related to its location to the road, other variables include whether it is alone or it is in the hands of an individual and the like. The unique identifier is provided by the signal detection sensor or the base station unit and is used to synchronize the base station identification and the location of the transmission facility.
In an embodiment of
In an embodiment of the transmission detection, controlling, identification, and reporting system 1500 where the transmission detection units includes a transmission decoding unit the system determines the location and the allowability of the transmission unit by comparing the transmission found with allowable or non-allowable transmission facility lists.
In an embodiment shown in
In an embodiment shown in
In an embodiment, the system 1500 will allow an authorized transmission facility to continue and/or provide the ability for the wireless transmission, (i.e., to talk and/or to receive calls) depending on the configuration and application. In an embodiment of the transmission detection, controlling, identification, and reporting system 100/1500 where detection system is separate from the discriminator unit, in this case the discriminator unit may also the controlling unit (base station technology and the like,) the system 1500 may further provide instruction to the controlling unit to allow or disallow transmission facilities, determined by their location.
In an embodiment of the transmission detection, controlling, identification, and reporting system 1500 the system compares the obtained information and depending on whether the detected transmission facility is determined to be a potential danger, the system may take the incoming transmission facility and determine its position prior to disallowing further transmission. This process is accomplished by knowing an identification of the transmission facility and using the information obtained by the controlling facility (frequency, time, type, channel, etc.) and searching for the incoming call signal. For example, in an improvised explosive detection (IED) situation, finding the trigger man may require the detection, identification and location determination in real-time. The array antennas will utilize large front end gain for the greatest distance. As discussed previously, jamming the area, to gain control of the transmission facility is one method of capturing the transmission facility. The ability exists to then track the trigger man from his current location and where he goes for investigative reasons.
In an embodiment shown in
Processing system 1810 includes one or more input/output devices 1802 that receive data from the illustrated sources or devices 1801 over network 1850. The received data is then applied to processor 1803, which is in communication with input/output device 1802 and memory 1804. Input/output devices 1802, processor 1803 and memory 1804 may communicate over a communication medium 1825. Communication medium 1825 may represent a communication network, e.g., ISA, PCI, PCMCIA bus, one or more internal connections of a circuit, circuit card or other device, as well as portions and combinations of these and other communication media.
Processing system 1810 and/or processor 1803 may be representative of a handheld calculator, special purpose or general purpose processing system, desktop computer, laptop computer, palm computer, or personal digital assistant (PDA) device, etc., as well as portions or combinations of these and other devices that can perform the operations illustrated.
Processor 1803 may be a central processing unit (CPU) or a special purposed processing unit or dedicated hardware/software, such as a PAL, ASIC, FGPA, operable to execute computer instruction code or a combination of code and logical operations. In one embodiment, processor 1803 may include, or access, code which, when executed by the processor, performs the operations illustrated herein. As would be understood by those skilled in the art when a general purpose computer (e.g., a CPU) loaded with or accesses code to implement the processing shown herein, the execution of the code transforms the general purpose computer into a special purpose computer. The code may be contained in memory 1804, may be read or downloaded from a memory medium such as a CD-ROM or floppy disk, represented as 1883, may be provided by a manual input device 1885, such as a keyboard or a keypad entry, or may be read from a magnetic or optical medium (not shown) or via a second I/O device 1887 when needed. Information items provided by devices 1883, 1885, 1887 may be accessible to processor 1803 through input/output device 1802, as shown. Further, the data received by input/output device 1802 may be immediately accessible by processor 1803 or may be stored in memory 1804. Processor 1803 may further provide the results of the processing to display 1892, recording device 1890 or a second processing unit 1895.
As one skilled in the art would recognize, the terms processor, processing system, computer or computer system may represent one or more processing units in communication with one or more memory units and other devices, e.g., peripherals, connected electronically to and communicating with the at least one processing unit. Furthermore, the devices illustrated may be electronically connected to the one or more processing units via internal busses, e.g., serial, parallel, ISA bus, Micro Channel bus, PCI bus, PCMCIA bus, USB, etc., or one or more internal connections of a circuit, circuit card or other device, as well as portions and combinations of these and other communication media, or an external network, e.g., the Internet and Intranet. In other embodiments, hardware circuitry may be used in place of, or in combination with, software instructions to implement the invention. For example, the elements illustrated herein may also be implemented as discrete hardware elements or may be integrated into a single unit.
As would be understood, the operations illustrated may be performed sequentially or in parallel using different processors to determine specific values. Processing system 1810 may also be in two-way communication with each of the sources 1801. Processing system 1810 may further receive or transmit data over one or more network connections from a server or servers over, e.g., a global computer communications network such as the Internet, Intranet, a wide area network (WAN), a metropolitan area network (MAN), a local area network (LAN), a terrestrial broadcast system, a cable network, a satellite network, a wireless network, or a telephone network (POTS), as well as portions or combinations of these and other types of networks. As will be appreciated, networks 1850 and 1880 may also be internal networks or one or more internal connections of a circuit, circuit card or other device, as well as portions and combinations of these and other communication media or an external network, e.g., the Internet and Intranet.
With reference to
In one aspect of the invention, a distance D1′, D2′, D3′, to each of the wireless transmission facilities 1980, 1985, 1990, respectively may be estimated based on a received power, at block 1960. In another aspect of the invention, a direction of the wireless transmission facilities may be determined using, for example, directional antennas and/or an amplitude-based angle of arrival method. In one aspect of the invention, the signals received by the transceiving system 1975 may be analyzed to determine if they are allowed to send and/or receive communication as previously disclosed at block 1970. As discussed previously, allowability may be determined based on a known set of wireless transmission facilities that are allowed within an area. All others are not allowed and, thus, communication is prohibited. If the signals are determined to be allowable, then control of the signal is “handed-off” to the reference signal transmitter 1972. Otherwise, the received signals may be further processed.
In one aspect of the invention, allowability of a wireless transmission facility may be determined based on a position of the wireless transmission facility with respect to the transceiving system 1972. For example, if the wireless transmission facility is determined to be within a predetermined distance, R3, from the transceiving system 1975, then communication to and from the wireless transmission facility may not be allowed, even though the transmission would normally be allowed. In one aspect, the area defined by R3 may be limited using directional information of the received signal associated with the wireless facility and the transceiving system 1975. Thus, if the transceiving system 1975 is moving towards the wireless transmission facility, then communication may not be allowed, while communication may be allowed if the transceiving system 1975 is moving away from the wireless transmission facility, even though the wireless transmission facility is within the area defined by R3. In another aspect of the invention, transceiving system 1975 may attempt to determine other wireless transmission facilities within a region, R4, attempting to communicate with the not-allowed transmission facility.
However, as the operating range of device 152 exceeds the operating range of base station 212 at 180 degrees, the distance may thus be represented as R3 (see curve b).
Thus, as the angle between base station 212 and device 252 increases, the distance between base station 212 and device 252, at distance R2 from device 152, increases and becomes limited to a distance of R3 for an angular period around 180 degrees. The distance then decreases to R1 as the angle increases.
Also illustrated is a transceiving station (device) 252, (which is equivalent to device 1975 of
In addition, R1 represents the closest distance between base station 212 and transceiving system 252. R4 represents the closest distance between base station 222 and transceiving system 252 and R5 represents the closest distance between base station 232 and transceiving system 252.
In one aspect of the invention, the transceiving system 252 may select one of the base stations as a primary cell. The primary cell may be selected based on the base station being determined to be closest, in distance, to the transceiving device 252. The transceiving system 252 may normalize the received power based on distance and transmission power of each of the base stations. In addition, the transceiving system 252 may normalize the location of each of the base stations with respect to the location of the base station of the primary cell. That is, in the illustrated network configuration shown in
In one embodiment of the invention a repeat jamming module, provides repeat jamming capability and specifically jams targeted cell phones and/or wireless communication device. The repeat jamming techniques utilize the outgoing signal of the cell phone and repeats the transmission 100 ns after the initial signal with matching power so that the effect of the overlapping communication on the receiving transceiver provides a confusion in the receiving transceiver and makes communication impossible and the call and/or wireless communication is dropped. In one embodiment of the invention the jamming module include a duel repeating circuit with a programmable delay line built in to allow the same communication to be delayed by the programmed delay amount. In another embodiment of the invention, the repeat jammers are placed in each section of the facility. When the signal detection array detects an unauthorized cell phone the repeat jammer takes that cell phone and only that cell phone off line. When the phone tries to acquire the tower the cell phone identification is re-verified.
In one embodiment of the invention, a Base Station Controlling Module, which identifies and controls cell phones interfaces with the Cell Phone Detection system to determine authorized or unauthorized phones, provides phone type, the time of arrival and the cell phones frequency and seamlessly interfaces backhaul and Denial of Service (DoS) capabilities. The Base Station Controlling Module, which identifies and/or controls cell phones, interfaces with the Cell phone detection system to determine whether a cell phone is an authorized or unauthorized cell phone. The cell phone detection system provides phone type, the time of arrival and the cell phones frequency to the base station unit, the base station unit matches the cell phone detected signal with the base station controlled and/or required cell phones and verifies the cell phone of interest is within the unauthorized areas. It also verifies in one embodiment of the invention whether the cell phone is an authorized cell phone for use within the facility, the data matrix determines authorized vs. unauthorized cell phone and authorized area vs. unauthorized areas and, seamlessly interfaces either providing backhaul and/or DoS capabilities.
In one aspect of the invention, a cell phone identification module which identifies cell phone identifications (IDs), determines whether an authorized or unauthorized phone exists, and provides the phone type, the time of arrival and the cell phone's frequency and seamlessly interfaces with the repeater jammer module, to disable the unauthorized phone in either the unauthorized area and/or an unauthorized phone in any area of interest. The repeat jamming unit jams all unauthorized cell phones within the facility and allows authorized cell phones.
In one embodiment of the invention, the signal detection sensors are placed throughout the facility to provide full coverage of the facility. Any cell phone within the facility will be detected and displayed on the centralized console interface. This information will be sent to the software radio Identification module to verify if this is an authorized or unauthorized cell phone. If the cell phone is unauthorized the repeat jammer module will disable the cell phone or the software radio identification module will deny service. The software radio identification module-is designed to receive a signal being transmitted from a cell phone and decode the IMEI number. The IMEI number is compared against a database of authorized IMEI authorized cell phones. In one aspect of the invention, to prevent cell phone from entering a facility undetected, Low Noise Jammers will be installed at all egress (entrance) points within the facility so that all cell phones coming into the facility are verified by the Software Radio Identification Module. An ancillary benefit is anyone mistakenly or unknowingly bringing a cell phone into the facility will be picked-up at the entrance point. In another embodiment, the Software Radio Identification Module (SRIM) identifies all cell phones within the coverage area. Any cell phone that is in an on state within the coverage area will be identified. The International Mobile Equipment Identity number or IMEI (Cell phone ID) will be compared with the facility's “authorized cell phone list”. An authorized cell phone is allowed to make and receive calls. All unauthorized cell phones are prevented from making or receiving incoming and outgoing calls. The software radio Identification module can be expanded to provide cell phone call monitoring.
In one aspect of the invention, the base station acquires a new cell phone, the base station provides, time code, band, and type to the cell phone Detection Sensor Array. The cell phone Detection Sensor Array determines whether the cell phone is within an exclusion zone. If the cell phone is detected outside the “Cell phone control area”, then the cell phone is released back to the Network Cell Tower and/or the calls are allowed where the cell phone is backhauled to the network. If the cell phone is found within the exclusion zone or “control area”, the base station determines whether the cell phone is authorized and an “Authorized Cell Phone” (VIA HLR Database interface) and the console displays the location of authorized cell phone, the (IMEI), and “Authorized cell phone status”. Alternatively, if the cell phone is determined to be an “Unauthorized Cell Phone” (VIA HLR Database interface) and the Base station prevents incoming and outgoing calls, the console displays the IMEI, the cell phone and “Unauthorized phone status.” In addition, the repeat jammer module may jam the cell phone signal and the console displays the IMEI, the cell phone location and “Unauthorized phone status”, depending on the system configuration. In another embodiment, the base station identifies all cell phones within the coverage area. Any cell phone on and within the coverage area will be identified. The International Mobile Equipment Identity number or IMEI (Cell phone ID) will be compared with the facility's “authorized cell phone list”. An authorized cell phone is allowed to make and receive calls. All unauthorized cell phones are prevented from making or receiving incoming and outgoing calls. The base station module can also be expanded to provide cell phone call monitoring.
In another embodiment the signal detection sensor array is used to provide Real-time tracking of inmates utilizing the Signal Sensor Array with wristband tracking technology on each inmate. (See patent application Ser. No. 12/231,437). The system is expanded to include a Staff Safety Alert & Tracking System (SSAT) utilizing the Signal Sensor array with built-in real-time wristband and/or security tags for the tracking of correction officers. In this embodiment of the system, the system, reports real-time time and position of every inmate and officer in the facility. The database collects every movement of a wristband up to 1000 times per second and provides this data into a data mining and historical playback capability. In another embodiment of the system the wristband has a signal detection module which detects a cell phone within a specific area the wrist band determines the user of the cell phone and reports the information back to the console. Some of the advantages in tracking Officer and Inmates include: Increased Staff Safety; Inmate escape prevention tool; Inmate and staff out of position tool; Continuous and accurate count of inmates; Group/gangs interaction monitoring; Accurate work scheduling and monitoring tool; On post/off post position of all security personnel; Escape alarm; last known position; immediate alarm and the like. The data mining capabilities enable the data base and data mining to; Accurately locate inmates in relationship to other inmate/staff at all times and to accurately investigate assault/rape and assist in prosecution tool; and ability to physically contact detection system for incident/rape investigation and prevention tool; Inmate tracking/Data Mining which provides for the identification of predators and predatory behaviors, create exclusion zones and alerting system to notify security of a boundary violation; Inmate tracking and Data Mining: for assessing staff and inmates' vulnerabilities; provides for decreased agency liability by providing accurate forensic information for court; the system also provides for audio and alarm capability (incident/rape prevention tool).
In another embodiment of the invention, the Cell Phone Detection system is integrated with a base station(s) Module in which the base station(s) may also have back haul capability wherein the system utilizes a pico/nano base station technology and cell phone detection system, wherein the base station registers the cell phone(s) and has the cell phone detection system verify the location of cell phone and the allowability module determines whether the detected phone is authorized and/or unauthorized. The system verifies who the cell phone belongs to a known IMEI (via database). The base station directs the system to back haul all authorized phones and display the authorized phones within the interested area and not display phones in non-interested areas. Then the base station(s) is directed to deny services to all non-registered/unauthorized within the restricted area and display these restricted phones and notify staff of their location and presence.
In another embodiment of the invention, the Cell Phone Detection system works in conjunction with an integrated Base Stations Module without back haul capability in which the base station(s) register the phone and have the Cell Phone Detection system verify the location of cell phone; the allowability module determines whether the detected phone is inside the restricted area. The system verifies who the phone belongs to by a known IMEI (via database). The base station is directed to release authorized cell phones and cell phones which are not in the restricted areas back to the local tower and display the authorized phones within the interested area, and not display phones in non-interested areas. The base station is directed to Hold on to unauthorized cell phones and display the unauthorized phones. All non-registered cell phones will have Denial of Service (DoS), by being held onto by the base station unit and the like.
In another embodiment of the invention, the Cell Phone Detection and Identification Module in which the Cell Phone Detection system is the controlling unit, wherein the system utilizes a sniffer and/or embedded IMEI decoders within each cell phone detection sensor to determine the location and identification of all cell phones within a specific area. The signal detection sensors find and positively locate the phone. In a configuration in which each sensor does not possess a decoder IMEI module, the sensor provides the following information to the sniffer: TOA, frequency, type, channel. The sniffer scans for the phone, then reports back the identification information. The system verifies who the phone belongs to and whether the cell phone is authorized or not authorized. In a configuration in which each sensor has a decoder module, the system displays green for authorized phone, red for unauthorized phones and the like. In another embodiment, the Sniffer module finds and positively identifies the cell phones. The sniffer provides information to the cell phone detection and location system (TOA, ID, frequency, type, channel . . . ). The Cell phone detection and location system then scan for the cell phone,-verifies who the phone belongs to and whether the cell phone is authorized and/or not authorized in that location and then displays green for authorized phones and red for unauthorized phones and the like.
In one aspect of the invention, the Cell Phone Detection and Identification Module works in conjunction with 3rd party Telco Support. In this aspect the sniffer module (IMEI decoder and identified) positively identify the phones, gives information to the cell phone detection and location system (TOA, ID, frequency, type, channel . . . ). The Cell phone detection system scans and identifies the location of interested cell phone, verifies who the phone belongs and whether the cell phone is authorized and/or not authorized and displays green for authorized phone and red for unauthorized phones. The system alerts the appropriate cell phone provider of unauthorized call phone to have the cell phone provider deny service on the cell phone. The staff may then confiscate the detected cell phone.
In another aspect of the invention, the Cell Phone Detection system works in conjunction with a repeat Jamming system and an Identification Module and/or embedded decoding module in which the sensors find and positively locate the phones In this case in which there is external identification of the IMEI, the system gives information to the sniffer (TOA, frequency, type, channel . . . )-scans-for the phone and reports back the identification of the cell phone. The system compares the ID with the database of authorized phone-and verifies whether the phone belongs to an authorized or an unauthorized person. The system displays green for authorized phone and red for unauthorized phones. The-the facility may pick up that specific phone. The repeat jammer disrupts the specific phone with a set repeat delay to take the cell phone offline. Pinpoint jamming disrupts all phones within the channel and area. A Broadband jammer disrupts all phones within area and frequency coverage and the like.
Although not shown, it would be recognized that the receiving and/or the transmitting antennas and/or the processing systems may be co-located or may be geographically distributed. When a plurality of receiving antennas are employed and geographically distributed, it would be recognized that correlation of the information obtained from each antenna is necessary. In one aspect of the invention, a plurality of antennas having a known angular receiving pattern may be co-located, see
In another embodiment of the invention, the wristband as described in patent application Ser. No. 12/231,437, includes a signal detection module as described in
One of the challenges of controlling a cell phone is knowing which cell phone is posing a danger and which cell phone does not pose a danger.
In an embodiment of the invention, the signal detection system verifies the location of the wireless communication device; the zone database identifies and classifies each area of the facility (2460). For example red areas or zones may be housing units, inmate areas, inmates cells, programs and inmate population areas, inmate rec yard, etc., grey areas may be perimeter areas which are susceptible to misidentification. (i.e., fence lines, wall perimeter). Green areas are areas such as administration areas, staff dominated areas. The exact location of the phone is important to determine whether this phone is actually within one of those restricted areas and/or sectors. Processing then continues to process the different zones (see
In an embodiment, if the cell phone is not authorized, (2450) (cell phone is determined by the Unique Identifier not being on the authorized list), several scenarios need to be determined before the cell phone is denied making and/or receiving a call. Variables include, who is the caller trying to call, is this phone actually in a restricted area.
In an embodiment of the invention, the Communication Control Unit, controls and monitors cell phone activity to determine what number is being called and programs being executed on the cell phone. Additionally, the Communication Control Unit is monitoring the cell phone activity (email, messaging, tried calls,) so that all data is capable of being stored for retrieval and analysis. If the cell phone call is an emergency call (i.e., 911) the system determines how to handle the emergency call. Some options include, releasing the 911 call back to the commercial Carrier to complete the 911 call, or redirecting the 911 call via a PBX connection routing the call to the facility security team or redirecting the call via a picocell and the like to the IP backhaul. The two latter options allow monitoring of the call automatically, and the former solution can be used to monitor the call. (See
Returning to
In an embodiment of the invention, if the “not authorized” cell phone/wireless device is trying to place a call, text message, email, or other similar electronic messaging (e.g., Twitter, Facetime, etc.) and the called/text-ed/communicated with device is unknown, and/or the wireless device is in standby, the system looks to the location of the phone to verify (2550) the phone is actually in a restricted zone (e.g., a red zone) (2560). If the detected phone is determined to be within a restricted zone (e.g., a red zone), a check is made (2563) whether the detected transmission device (i.e., cell phone) is one that is known. This check for being known may be based on information regarding whether there has been previous activity regarding this cell phone. If the device is not known, then processing continues as shown in
At block 2815, the system checks the history of the known phone to see if the cell phone has been denied access before (e.g., previously a known inmate cell phone) (2805a). To check whether the phone has been denied access previously, the system runs a weighted set of algorithms (2820) to determine whether the cell phone, pending access, is actually an unauthorized phone or a phone which has, by accident, been picked up by the system (e.g., an employee, a visitor, and/or a neighbor outside of the restricted zone). Some of the variables which make up the analysis of the weighted algorithms are, but not limited to, a number of denials, a number of locations, a number of times numbers were called, the frequency of call attempts, a time and location of events, the volume of denials, times, frequency, period of time, error logs, missed identification logs, etc. When the system, detects a phone which is not an authorized phone, but also is confirmed to not pose a threat to the system, the detected cell phone is added to a “Possesses No Danger List”. The agency decides how to deal with the phones on the “Possesses No Danger List.” Some examples of cell phones that may be put on the Possesses No Danger List are neighbors who live next to a secure complex, people who work at the facility (employees), frequent pedestrian who walk frequently near the complex (visitors) and the like.
In an embodiment of the invention, the system uses different detection techniques such as phase angle cell phone detection, narrow band antenna signal detection, phase detection, amplitude detection, time-domain detection resolve the ambiguity and the precise location of the wireless device. If it is determined the cell phone is most likely outside the restricted zone the system checks to see if the number dialing is a neighbors, visitor, Staff/trusted persons (Possesses No Danger List). The system looks at databases which contain these numbers. The system also verifies whether this identification has been released before and verifies the reason for the release. The system also verifies whether the number being called is on a known agency list, state agency, and/or known entity.
In an embodiment if the invention, if the system determines that the phone is not included on the Possesses No Danger list or there is an unambiguous determination to deny service (2824), (i.e., Positive weighting) then processing continues to step 2826 to deny service. However, if the system determines that the detected phone transmission belongs to a neighbor, and/or staff member, the system allows the call/text and/or the incoming call, and alerts facility administration. Optionally, the system may register neighbor phone(s) and staff phone(s), verify the location of the call, and may develop a matrix of “zone violation mis-identifications”. Alternatively depending on policy denies service to said cell phone and the like.
In an embodiment of the invention, if it cannot be confirmed that the device is outside the restricted area and/or cannot confirm the previous history of that cell phone at the facility (i.e., negative weighting), the system runs additional tests (2822) and processing continues in
In an embodiment of the invention, upon entry from the processing shown in
If no history for the dialed telephone number is found, then an analysis is performed, (2630) as previously described, in order to deny the service and alert staff and security (2645).
Otherwise, a determination is made whether the device has made previous transmissions that have been detected (2640) and whether the previously detected calls were made from non-restricted areas (2643). If yes, then the history of location and times of the previously calls is made (2646). A determination is made using the history information to determine if the detected signal is a recent one (e.g., only received today). If yes, then a determination is made whether there is could be an error in a connection range (2650). If yes, then the signal is deemed to be one of a transit and processing continues as shown in
However, if there is no error in range, then a determination is made whether there is a consistency of local usage (2656). If there is consistent use then a determination is made whether the signal detected from the cell phone is registered to a local (or acceptable) user (2660). If so, then the call is allowed and information regarding the call is logged. (2663).
However, if the call is not from a registered user, a determination is made whether the detected signal is from a phone of an acceptable user, who is not registered (2670). If so then a request for registration is made (2673) and processing continues as shown in
If the cell phone is not indicated to be registered to a staff member, then a determination is made whether there has been long term usage from this phone (2680). If so, then the call is allowed (2663). Otherwise the call is denied (2645).
Returning to
Upon entry to the processing shown in
Otherwise the call is allowed, but internal security procedures are implemented in order to monitor the call (2690).
Otherwise the service is denied and appropriate security procedures are initiated (2692).
If the user does not have permission to make the call from the determined zone, then the call is denied and appropriate security procedures are initiated (2692). In an embodiment of the invention, the system follows security procedures of the facility (allow/don't allow, depending on agency protocol and matrix parameters) to inform the staff of a security of breach. e.g., inform staff not allowed to make call from restricted area and/or call an inmate and/or an inmate's relative.
Returning to block 2684, if the user is determined not to be authorized, then a determination is made whether a staff member (who may be associated with the called or called from number) is on duty (2694). If the staff member is not on duty, then the service is denied and appropriate security personnel are notified along with logging information regarding the call. Otherwise, a determination is made (2698) whether the user is authorized to make the detected call in the determined zone. If the user is authorized, then the call is allowed. (2699). However, if the user is not authorized, then the security is notified (2692).
In an embodiment of the invention, (see
Returning to
Thus, in the processing shown in
In a preferred embodiment the system is a local wireless network that may be controlled by a Psuedo Tower as previously described, and does not allow restricted phones access to the macro wireless network (e.g., a wide area wireless communication channel operated by a third party) unless the phone is either authorized, or dialing an emergency call (i.e., 911). In the case of a 911 call the phone is prevented from making other communication while in a 911 call. In an preferred embodiment of the invention, as shown in
In an embodiment of the invention, (see
It is expressly intended that all combinations of those elements that perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Substitutions of elements from one described embodiment to another are also fully intended and contemplated. For example, while the term “cell phone” or “transmission facility” or “transmission device” has been used herein, such terms relate to a general class of wireless transmission devices that includes standard cell phones, smart phones (e.g., PALM CENTRO), and iPhones. PALM is a registered trademark and CENTRO is a trademark of the Palm Inc., Sunnyvale, Calif. iPhone is a registered trademark of Apple Inc. Culpertino, Calif.
The terms “a” or “an” as used herein are to describe elements and components of the invention. This is done merely for convenience and to give a general sense of the invention. The description herein should be read to include one or at least one and the singular also includes the plural unless indicated to the contrary.
The term “comprises”, “comprising”, “includes”, “including”, “as”, “having”, or any other variation thereof, are intended to cover non-exclusive inclusions. For example, a process, method, article or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, unless expressly stated to the contrary, the term “or” refers to an inclusive “or” and not to an exclusive “or”. For example, a condition A or B is satisfied by any one of the following: A is true (or present) and B is false (or not present); A is false (or not present) and B is true (or present); and both A and B are true (or present).
While there has been shown, described, and pointed out fundamental and novel features of the present invention as applied to preferred embodiments thereof, it will be understood that various omissions and substitutions and changes in the apparatus described, in the form and details of the devices disclosed, and in their operation, may be made by those skilled in the art without departing from the spirit of the present invention.
It is expressly intended that all combinations of those elements that perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Substitutions of elements from one described embodiment to another are also fully intended and contemplated.
Any reference signs in the claims should not be construed as limiting the scope of the claims or the invention described by the subject matter claimed.
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